Improved composition for preserving and waterproofing leather



UNITED STATES PATENT OFFICE.

ROBERT K. WRIGHT, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVED COMPOSITION FOR PRESERVING AND WATERPROOFING LEATHER.

Specification forming part of Letters Patent No. 38,353, dated April 28,1863.

To all whom it may concern:

Be it known that I, ROBERT K. WRIGHT, of the city and county ofPhiladelphia, and State of Pennsylvania, have invented a new and usefulComposition for Preserving Leather; and I do hereby declare that theingredients used in making said composition and the process of mixing orcompounding them to make it is described in the following specification,with directions for applying the composition to the leather to bepreserved by it.

The nature of my invention consists in makin g a composition of certainproportions of boiled linseed-oil, gum-copal, oil of turpentine, andcaoutchouc, mixed or compounded and applied to theleather substantiallyas described in the following specification.

To enable others skilled in the art to make and use my new compositionfor preserving leather, I will proceed to describe the best mode knownto me for making and using it.

First. I put three pounds of gum-copal (crushed or broken) and half agallon of boiled linseed-oil into an open copper vessel and boil themtogether until the gum is dissolved. When cold, I add one gallon of oilof turpentine, and mix the whole together thoroughly by stirring, andthen put it in a bottle or jug and stop it tight.

Second. I take half apound eaoutchouc, cut it into shreds, and put it ina bottle and add one gallon of oil of turpentine, stop it tight, andshake it occasionally until the caontchouc is dissolved. I then mix fourmeasures of the first-mentioned compound with one measure of the secondand apply the composition thus formed to the leather with a soft brush.Atter the first coat is absorbed by the leather I apply a second, andcontinue to repeat the application until from six to ten coats have beenapplied, according to the thickness and absorbent powers of the leather.

If the composition should become thick from exposure, add oil ofturpentine until it is thin enough to flow as freely as before. Thecomposition should be keptin bottles closely corked or stopped.

This composition renders the leather impervious to water and increasesits durability. Itis particularly desirable for the soles of shoes, asit makes them wear far longer than they otherwise would.

I believe I have described the best mode known by me of making and usingmy new composition for preserving leather, so as to enable any personskilled in the art to make and useit without furtherinvention orexperiment. I will now state what I desire to patout.

What I claim as my invention is The above-described composition forpreserving leather, made of the ingredients enumerated, mixed orcompounded in about the proportions specified.

ROBERT K. WRIGHT.

Witnesses:

ARTHUR MALOOM, CHARLES 0. Months.

